msm: mdss: hdmi: clear EDID parsed data

In current HDMI driver, previous EDID's parsed data is being
cleared only if current EDID is successfully read and
hdmi_edid_parser() is called which indeed calls
hdmi_edid_reset_parser(). If current EDID failed to read
successfully, stale EDID parsed data from previous connection
is being retained.
So, always clear EDID parsed data on disconnection instead
of clearing it at the time of parsing new EDID.

Change-Id: Icd59fe402ee9190098e990978aa55785cb8dbd8d
Signed-off-by: Narender Ankam <nankam@codeaurora.org>
Signed-off-by: Ramendra Kumar <ramendra@codeaurora.org>